Some others, unmentioned...
Chris Cain
Matt Schofield
Michael Burkes
Kid Anderson
Kirk Fletcher (maybe the best rhythm guitar chops on the scene... not that his soloing is less than excellent)
Check Out BB's "Completely Well"... I believe it was the release that immediately preceded IMS. There's a fun, jammed out "You've Been Mean" in which the studio cats assert themselves more than usual. At the end BB says something like "What are y'all tryin' to do -- kill me?"